Weight, Mass & Volume
Would you weigh more on Earth or the Moon?
What is density?
A measure of the mass per unit volume of a substance. Or, how heavy something is.
Oil is usually less dense than water, so it _________ on the surface.
Floats
This theory is used to explain why matter behaves the way it does.
The particle theory.
What force causes you to have weight?
Gravity
What 2 things does density depend on?
The mass of the particle, and how tightly packed the particles are.
Buoyancy is the upward force that a ________ exerts on an object.
Fluid.
The volume formula.
Volume = length x width x height
What is the volume of a 17 x 2 x 5 cube?
170 units cubed
Generally speaking, liquids and solids are packed tighter than gases. True or false?
True.
in order for something to stay afloat it is important that the buoyant force equals the...
Water displaced by the object.
Matter.
What is volume?
A measure of the amount of space an object or substance takes up.
A characteristic property of this substance is that it boils and freezes, can change between 3 states.
Liquid water.
This item measures different levels in different liquids.
Hydrometer.
1000cm cubed is the same as 1000mL which is the same as ______
1L.
What discovered the theory of displacement?
Archimedes.
Balsa wood has a density of 0.12 grams per cm cubed. At this density, it would sink in distilled water that has a density of 1 gram per cm cubed? True or false?
False. It is lighter than the distilled water, therefore it will float.
This line allows observers to easily see whether a ship is floating high enough in water.
The oxygen in a fish's swim bladder comes from dissolved ____________ in the water.
Oxygen.